Chair



FIG. 1 is a front perspective view of a chair showing my new design;

FIG. 2 is a side view thereof (with the opposite side being the same);

FIG. 3 is a front view thereof (with the back view being the same);

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines in the drawings depict portions of the chair that form no part of the claimed design. 

CLAIM The ornamental design for a chair, as shown and described. 